Inside Out Library · Explore

Revolving Doors Always Closed: Styles, Types, Designs (1910)

Van Kannel Revolving Door Co., "G.W. Gaden" · Van Kannel Revolving Door Co.;"G.W. Gaden" · leaf 21

An illustration from Revolving Doors Always Closed: Styles, Types, Designs, 1910, leaf 21 — ntained a carriage supporting thebearings that allows the wings to be foldcv^. over to the side of the opening.^^ To accom-plish thisnhe lower pivot is rased by a lifter in the same manner as the C door whichmotion is transferred through the central shaft to a carriage in the trolley and unlocks… … \L\\

Openings · Entrances · Storefornts and Curtain Walls · Revolving Door Entrances · Glass Doors · Plans

Internet Archive · Building Technology Heritage Library · Public Domain Mark 1.0. Free to use for anything.

More pictures from Revolving Doors Always Closed: Styles, Types, Designs

More like this

$An illustration from Catalogue of double stars from observations made at the Royal Observatory, Greenwich, with the 28-inch refractor during the years 1893-1919 (1921)$